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Finding the Third Proportional to 21,008,822 and 45,698,608

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Solution

The third proportional to 21,008,822 and 45,698,608 is: 99,404,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,822 : 45,698,608 = 45,698,608 : x
  2. Step 2: Convert to fraction form
    21,008,822/45,698,608 = 45,698,608/x
  3. Step 3: Cross multiply
    21,008,822x = 45,698,608 × 45,698,608
  4. Step 4: Simplify right side
    21,008,822x = 2,088,362,773,137,664
  5. Step 5: Solve for x
    x = 2,088,362,773,137,664/21,008,822
  6. Step 6: Final answer
    x = 99,404,087.16

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.